Spring-retarding device.



c. w, KELSEY. SPRING RETARDING DEVICE. AYPLIOATION FILED NOV. 15, 1905.

Patented Dec. 1,1908.

FIGEJ'.

' "Na-noma ."f To all'whom itmay co'r'wem;

. say, of Philadelphia, in the State of Penn;

Be it known that I, CABWALLABER W. Ken

sylvania, have invented certain new and useful 'I-m rovementsinrSpring-Retarding De-.

vicesfwiiereof the following is aspecification, reference being hadto'the accompanying, drawings;

a retardingefi'ect on the sprln action'both when the body and frame'ten' "to approach" and, the effect-of the. combination-of suchretardmgmdevice with a vehicle' spring is horizontal; a lever pivotailyconnected. with retarded as to prevent anyvio 40 My improvements areparticularly applicable to automobiles and other vehicles, to

prdvent violent" movements of the vehicle body by the spring or springsconnectingsaid body with the vehicle wheel frame.

Devices for the purpose aforesaid are usually so constructed andarrangedas to afford each other, and when they tend to separate,

merely to apparently stiffen the latter-and nullify its cushioningeffect.

Therefore, it is theobJec't of my invention to=prov1d e' a' retardingdevice for the pur lgose described, which shall ermit free moility ofthe spring in one direction and thus aflt'ord its full cushioning effectand only have a retarding efi'ect ripen the spring when the latter tendsto move in the reverse direction. For instance, the form of myinventionhere nafter described is soyarranged -that,when the body of the vehicletends :to

move downward toward the wheel; supporting frame, the sprin as s betweensaid body and frame are free to a 0rd the full cnshionin' effect, butwhen under the reflex action 1 the springs the body tends to rise fromsaid frame, 1: e movement offthe s rings is so movement ofthe vehiclebody. I .In', the form of my inxrention' hereinafter described, acircular drum is, secured in rigid relation with the vehicle body withits axis the" wheel frame, by. link, is mountedto turn on said drum; andclutching means'are provided betweensaid i mitting the lever to turnfreely with. to the ely cnthe drum' and "permits such movea 'ment to a efrom said, ti e, the lever reces ent upward:

ever and drum, per-y I respective recesses and lock said ring in drum inone direction andto. friction ally the drum in the other dim-e 63,,

that, en the, vehicle bod'ytends teap- 'g ach the wheel frame-1 thelever turns unretarded, but when said tends Paten.ted:Dec.: 1, 1 908;

movement, v

My invent on comprises features of construction and arrangement claimed.v

In the drawings, Figure I, is-a fragmcm e rfi with its axis inhorizontal position, and,

7, is alever provided with a ring '8, 'enby the link 10, with saidmember 1." bese'en that by'this 'construction,.the relation between thelink. and frame is a definite moves up or down, the lever will also move'u or down, being connected to said frame by the-link 10. I

'- As shown igt e r i h is in definite relation with the vehiclememprovided with a series of t angential recesses 12, infitsperipheryywhlchfim so pro tioned as-to-prsent the rollers 13,1n'rol 111g13 are seated in the larger ends of ..their res jective recesses-12.

may be turned freely in the direction 0 but, when it'isjattempte to'turn said ring 15, in the reverse diI'GCtlOI1 said rollers 1?, areshifted. tangentially outward in their relationwith s ai-d-drum. Asshown in I ring The lever 1 .is conneeted to the. frame like the'leverf7f,g-above described andsaid jaws are ed witha facing-i8,

the various novelhereinafter more definitely specified and indicates a:The sprin s or constantrelation, since as the framecontact withitheringl5, when said rollers t is to be understood that;the arrange 'mentlast described is such that the rmg 11?, t e

i id Fi 15, is interposed between I1,'anjd the jaws 16,='efthe lever-17,Lsaid jaws to their-constituting asp-lit-ri .ally engages-said andretards taryside view, diagrammatically indicating a vehicle wheel frameand'body with my'm' movable vehicle members Land 2!. The-cir- 6 issecured-to the member 2,} a

circling said drum, and pivotally connected It will ber2, like the drum6, abovedescribed, is

larr'ow marked" thereon, in Fi .II, with the I effect of idly rotatingsaid ro lers 13, in the larger ends of theirresgective recesses '12, I

of fries. no

tional material, for instance, vulcanized fiber, necessitatmgconsiderable stress to turn said lever 17, on said ring. As shown inFig. II, said jaws 16, are provided with opposed lugs 20, 21, and thelatter is provided with bearings 22, for the shaft 23, of the cam 25,turned in thedirection of the arrow marked thereon, 'it tends tocompress the jaws 16, upon said ring 15, to increase the frictionalengagement of said jaws and ring Said cam 25,.is convenientlyprovidedwith the lever arm 26, which is connected by the spring 28, withthe stud 29, on the lever jaw 16; the tension of said spring 28, beingvariable by means of the eye bolt 31, and nuts 32, which connect it withsaid cam arm 26. Said device is, operated as follows: Upon downwardmovement of thevehicle member 2,.which supports said drum, the

lever turns freely upwardon said drum, the rollers 13, turning idlyduring such movement, thus permitting the approach of said member 2,toward the member 1, with the springs 3, and 4, freely mobile. However,

I any reverse movement tending to separate on the drum,

- ment described perlnits the lent movement of the velncle body by saidvice between -said relatively movable memsprings.

.Although I-find it convenient to secure the drum to the body member 2,of the vehicle, and to secure frame member of the vehicle as abovedescribed, it is tome-understood that the result above described may; beattained with the f relative position of sald membersreversed.

Therefore, it

is to be understood that-I do not desire to i it is obvious that variousmodifimade therein without departing from the essential features of myinventlon. e

I.claim':

.1. In a vehicle, the combination with a spring-connected wheelrelatively. movable frame and body; of'a spring' retardilig, de-' bers,arranged to permit free relative-move. ment thereof in one direction,-such movement in'the other d' prising two concentric ri ngs as foradwhich is so shapedthatwhen the lever tothe wheely limit myself to theprecise detalls of construction and arrangement herein set forth, as

' cations may be said relatively .Vice betweensaid and. to retard.ectlon, com-z justin the degree of friction between them, one 0 saidrings bein secured in' definite relation to one of sai relativelymovable members; and means for connecting the other of said rings to theother of said relatively movable members to permit free motion of saidother ring in one direction and positive engagement of said other ringin the other direction. v v

2. In a vehicle, the combination with a relatively movable spring 0nnected wheel frame and body; of a spri g retarding device between saidrelatively movable members arranged to permit free ment thereof in onedirection and retard such movement in the other direction, come prisinga drum securedin definite relation to one of said relatively movablemembers;

a ring encircling said drum; rollers between said drum'and said ring; alever in frictional relation with the periphery of said ring, connectedto the other of said relatively movable members;and means for varyingthe degree of friction between said ring and lever, substantially as setforth.

'3. Ina vehicle, the combination-of a relatively movable springconnectedwheel frame and ody; of a spring retarding 'devicebetween said frame andbody arranged to permit free relative movement thereof in one directionand retard such movement in the relative move-- other direction,comprising a' drum secured 1n definite relation to one of said members;a ring encircling said drum; rollers inte posed betweensaid ring anddrum arranged to permit free relative movement of said drum and ring inone direction and prevent -such movement in the other direction; alever' encircling and frictionally engaging said ring; means for varyingthedegree of friction between said ring and lever; and

means connecting said leverfwith the other i of said-members, substantialy asset forth.

4. In a vehicle, the combination with a relatively movablespring-connected wheel frame and body; of a spring retarding devicebetween said ing a drum secured in definite relatlon to frame and bodycomprisone of said relatively movable members;- two concentric ringsenclrcling said drum means for adjusting tlfe degree of friction betweensaid rings; means whereby the rings may turn freel about said drum inone direction, but one o them'positively engagessaid drum when moved'inthe other direction; and connections between said'jrings and the otherof movable members, substantially as setv forth.

5. In" a vehicle,

frame and body -one of saidrelatitfely movablemeinbers; two-"concentr-ic rings encircling saiddrum an thecombination with a' Irelatively movablef spring-connected wheel tangential recess; of meanspreventing the rotation of said drum; a ring encircling said drum; aroller in said recess 1n contact with cry of said ring, substantially asset forth.

' circling saidring; i materlal between sald ring and lever, subsaiddrum and ring; a lever; and means frictionally engaging said leverWith-the periph- 7 In a device of the class described, the combinationwith a drum provided with a tangential recess; of a ring encircling saiddrum; a roller in said recess in contact with said drum and ring; alever; means frictionally engaging said lever with said ring, comprisingopposed jawson said lever; and, means arranged to resiliently *compresssaid jaws toward said ring, substantially as set forth.

8. In a device of the class described,.the combination with a drumprovided with a tangential recess; of a ring encircling said" drum; aroller in said recess in contact with said drum and ring; a lever;means--fric-' tionally engaging'said lever with said ring, comprisingopposed jaws on said lever enand, a facing offrictional stantially asset forth. j j 9. In a device of the class described,'the

combination with a drum provided with a tangential recess; of. a ringencircling said drum; a roller in said' recess in-c'ontact with saiddrum and ring; a lever means frictionally engaging said lever withsaidring, comprising opposed. jaws on said lever; and,

said drum and ring; a lever; means fric-" tlonally engaging said leverwith said ring;

comprising opposed jaws on said lever; and, means arranged toresiliently compress said jaws toward said r1ng,'substantially, as setforth. i

11. In a device of the class described, the

combination with a 'drumprovided with a tangential recess; of aringencircling said drum; a roller in said recess .in contact with said drumand ring; a lever; means frictionally engaging.- said lever with saidring, comprising opposed jaws on said lever; and, means arranged toadjustably compress said jaws toward said ring, substantially as setforth.

'In' testimony whereof, I have hereunto signed my name, at Philadelphia,Pennsylvania, this l lth-da'y of November, 1905.

' I CADWALLADER W. KELSEY. Witnesses;

' JAMEs' H. BELL;

E. L. FULLERTON.

